JPH0440990Y2 - - Google Patents

Description

[Detailed explanation of the idea] 《Industrial application field》 The present invention relates to a support device for a vehicle seat.

《Prior art》 This type of support device is, for example, disclosed in Japanese Patent Application Laid-Open No. 1986-
As disclosed in Japanese Patent No. 191836, it is known that a cushion frame of a vehicle seat is supported by a large number of links and connecting rods to provide a cushioning function.

《Problems to be solved by the invention》 However, since the conventional technology has a configuration with a large number of links and connecting rods,
There are problems in that the number of parts is large, the structure is complicated, and the assembly work is complicated.

SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicle seat support device that has a simple structure, can be easily assembled, and has a sufficient vibration absorption effect.

<Means for Solving the Problems> In order to solve the above-mentioned problems, the support device of the present invention includes a bracket provided on the floor side of the vehicle body facing both sides of the vehicle seat, and a bracket disposed on the bracket. and a pair of support members arranged to support a cushion frame of a vehicle seat, the support members being formed by bending an elastic wire, and disposed on the bracket along the front-rear direction of the vehicle seat. a connecting portion that is bent and extended upward from both ends of the connecting portion, and is bent in the middle into a substantially dogleg shape;
a pair of adjustment members, each having a support portion whose distal end portion is pivotally mounted near a corner portion of the cushion frame, and having an inclined surface for variably adjusting the elasticity of the support member by pressing a midway portion of the connection portion; The bracket is provided with an elastic adjustment mechanism for the support member constituted by an operating shaft having threaded portions in opposite directions near both ends to connect the pair of adjustment blocks and displace the adjustment block; A bending corner portion at both ends of the connecting portion of the support member with the support portion is inserted into a fixing screw provided on the bracket, and a stopper is provided on the bracket for receiving the bent corner portion from the outside. .

<<Operation>> The vehicle seat is supported by a pair of support members made of elastic wire, and the impact is absorbed by the support portions bent in a substantially doglegged shape.

In addition, a pair of adjustment blocks that variably adjust the elasticity of the support member by pressing the middle part of the connection part of the support member are connected to a bracket provided on the vehicle floor side, and these pairs of adjustment blocks are connected to displace the adjustment block. An elastic adjustment mechanism for the supporting member constituted by the operating shaft is provided, and the amount of pressure applied to the connecting portion of the supporting member by the adjusting block is changed by displacing the pair of adjusting blocks in a direction toward or away from each other by operating the operating shaft. do.

<<Embodiment>> FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

The support device in this embodiment has a pair of support members 3 for supporting a cushion frame 2 of a vehicle seat attached to a bracket 1 provided on the floor side of the vehicle body.

The cushion frame 2 is formed in a mouth shape,
A plurality of springs 4 are stretched, and brackets 1 are placed on both sides of the cushion frame 2. Each bracket 1 is formed by bending a sheet metal with a substantially crank-shaped cross section, and is disposed along the front-rear direction of the vehicle seat, and is connected to each other in the vehicle width direction by a pair of connecting rods 5. There is.

The support member 3 is formed by bending an elastic wire, and includes a connecting portion 8 disposed on the bracket 1, and is bent and extended upward from both ends of the connecting portion 8, and its tip end is connected to the cushion frame. It has a support part 6 which is pivotally connected by a pin 7 near the corner part of 2. The connecting part 8 is secured to the bracket 1 by inserting fixing screws 9 provided on the bracket 1 into the bent corners with the supporting parts 6 at both ends, and at the same time, this corner part is connected to the stoppers 10 provided on the bracket 1. It is held in the bracket 1 by receiving it from the outside. On the other hand, each of the support parts 6 is bent in a substantially dogleg shape in a direction toward each other in the middle, so that the support part 6 supports the vehicle seat with sufficient elasticity.

The bracket 1 is also provided with an elastic adjustment mechanism for the support member 3. This is achieved by arranging adjustment blocks 11 having tapered surfaces in the middle of the connecting part 8, and by displacing each adjustment block 11 in the left-right direction of the vehicle body with the operating shaft 12, the middle part of the connecting part 8 is pressed. The elasticity of the entire support member 3 can be variably adjusted. In other words, the operation shaft 12
As shown in the figure, it is rotatably supported by a bearing bracket 13 provided on the bracket 1, and threaded portions facing in opposite directions are formed near both ends, and each adjustment block 11 meshes with these threaded portions. ing. Therefore, by rotating the operating shaft 12 by operating the knob 12a provided at one end of the operating shaft 12, each adjustment block 11 is displaced toward or away from each other, and the connection portion by the tapered surface is moved. The amount of pressure applied to 8 can be changed. The intermediate portion of the connecting portion 8 is bent into a concave shape corresponding to the adjusting block 11, so as to obtain a stable function.

Furthermore, cushion frame 2 and bracket 1
As shown in FIG. 3, a shock absorber 14 is provided between the seats to absorb shock when the seat is seated.

In the support device as described above, the vehicle seat 10
When the seat receives vibration in the vertical direction, each of the support parts 6 of the support member 3 described above elastically deforms, and the shock is further absorbed by the action of the shock absorber 14, thereby maintaining a comfortable sitting position. . Moreover, it is also possible to adjust the elastic force of the support member 3 using the elastic adjustment mechanism to obtain an impact effect according to the weight of the occupant.

<<Effects of the invention>> As explained above, according to the present invention, the vehicle seat is supported by the support portion of the support member made of elastic wire, which is bent in a substantially dogleg shape. It is possible to absorb the impact of a vehicle seat without providing a complicated support device, and its assembly becomes easy.

In addition, a pair of adjustment blocks that variably adjust the elasticity of the support member by pressing the middle part of the connection part of the support member are connected to a bracket provided on the vehicle floor side, and these pairs of adjustment blocks are connected to displace the adjustment block. An elastic adjustment mechanism for the supporting member constituted by the operating shaft is provided, and the amount of pressure applied to the connecting portion of the supporting member by the adjusting block is changed by displacing the pair of adjusting blocks in a direction toward or away from each other by operating the operating shaft. As a result, the elastic supporting force of the vehicle seat by the support member can be adjusted, and the passenger can select the desired ride comfort.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of a support device for a vehicle seat showing an embodiment of the present invention, and FIG. 2 is a sectional view showing an elastic adjustment mechanism provided in the support device of the same embodiment.
FIG. 3 is a perspective view showing the assembled state of the support device of the same embodiment. DESCRIPTION OF SYMBOLS 1... Bracket, 2... Cushion frame, 3... Supporting member, 6... Supporting part, 8... Connecting part, 11... Adjustment block, 12... Operating shaft.

Claims (1)

[Scope of utility model registration request] The seat includes a bracket provided on the vehicle floor side facing both sides of the vehicle seat, and a pair of support members disposed on the bracket to support the cushion frame of the vehicle seat, and the support members are made of elastic wire. The bracket is formed by bending and forming a connecting part which is arranged along the front and rear direction of the vehicle seat, and a connecting part which is bent and extended upward from both ends of the connecting part and abbreviated in the middle. a support part which is bent into a shape and whose tip end is pivoted near a corner of the cushion frame, and an inclined part that presses a midway part of the connection part to variably adjust the elasticity of the support member. The elastic adjustment mechanism of the support member is constituted by a pair of adjustment blocks having surfaces and an operation shaft having threaded portions in opposite directions near both ends to connect the pair of adjustment blocks and displace the adjustment blocks. Further, the bracket is provided with a stopper for inserting the bent corner portions at both ends of the connecting portion of the supporting member and the supporting portion into fixing screws provided on the bracket, and for receiving the bent corner portions from the outside. A vehicle seat support device characterized by: